Foundation-sec-8B-Reasoning is an 8-billion-parameter reasoning model purpose-built for cybersecurity workflows. Elevating Security ReasoningEffective cybersecurity analysis requires deep, multi-layered reasoning. Generic reasoning models can assist, but they may lack the ability to understand the specific logic and structure of security workflows. The model is built to support security workflows that demand logical reasoning, including tasks like threat modeling, attack path analysis, risk evaluation, and security architecture review. To explore how Foundation-sec-8b-Reasoning can be applied across real-world security workflows, check out the use case cookbook on our public Github repository.